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List:       freebsd-questions
Subject:    Apache FCGI in a a jail under FBSD 9 won't start due to shared memory creation error
From:       Chad Leigh Shire.Net LLC <chad () shire ! net>
Date:       2012-07-27 6:16:54
Message-ID: DECF6592-1F64-4BED-81F8-64DE811F10DE () shire ! net
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Hi

I run systems using FreeBSD 9.0

FreeBSD utah.XXXXXXXcom 9.0-STABLE FreeBSD 9.0-STABLE #1: Wed Mar 21 15:22:14 MDT \
2012     chad@underhill:/usr/obj/usr/src/sys/UNDERHILL-XEN  amd64

and on those systems run a bunch of jails.  I have Apache 2.2 built and running in \
the jail in question, and recently had need to add mod_fcgid to it.  NOTE that the \
Apache and mod_fcgid were not installed through ports or packages.  I download the \
source and build myself (for various reasons).  

Apache inside the Jail, with mod_fcgid enabled will not start:

[Mon Jul 23 10:59:35 2012] [emerg] (78)Function not implemented: mod_fcgid: Can't \
create shared memory for size 1192488 bytes


I did a search on this and found that I would probably need a system kernel parameter \
changed from 0 -> 1

security.jail.sysvipc_allowed

So I did that.  (And restarted the jail).  However, I still get the same error when \
trying to start apache.

I noticed a similar parameter  security.jail.param.allow.sysvipc  but cannot change \
this at run time and did not find anything useful about what this parameter is for \
using a search engine.

(As an aside, how would I change security.jail.sysvipc_allowed   and also \
security.jail.param.allow.sysvipc at boot time?  I added them both to \
/boot/loader.conf but they did not get changed at boot and I had to do the \
security.jail.sysvipc_allowed one again on the command line -- I have some vfs type \
kernel state variables set there and they stick)

I would appreciate some help with getting things set up so that I can run apache with \
mod_fcgid under my Jails on FBSD 9.

Thanks!
Chad


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